650663b4cb
The FDW batching code was using the same tuple descriptor both for all slots (regular and plan slots), but that's incorrect - the subplan may use a different descriptor. Currently this is benign, because batching is used only for INSERTs, and in that case the descriptors always match. But that would change if we allow batching UPDATEs. Fix by copying the appropriate tuple descriptor. Backpatch to 14, where the FDW batching was implemented. Author: Amit Langote Backpatch-through: 14, where FDW batching was added Discussion: https://postgr.es/m/CA%2BHiwqEWd5B0-e-RvixGGUrNvGkjH2s4m95%3DJcwUnyV%3Df0rAKQ%40mail.gmail.com
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.